Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the best-selling Take Control ebooks.

 

 

Pick an apple! 
 
Smarter Parental Controls

If you've been using the parental controls options in Mac OS X to lock your child out of using a particular computer late at night, but would like to employ a more clever technique to limit Internet access, turn to MAC address filtering on an Apple base station.

To do this, launch AirPort Utility, select your base station, and click Manual Setup. In the Access Control view, choose Time Access to turn on MAC filtering. You'll need to enter the MAC address of the particular computer, which (in 10.5 Leopard and 10.6 Snow Leopard) you can find in the Network System Preferences pane: click AirPort in the adapter list, and click Advanced. The AirPort ID is the MAC address.

 
 

Administrivia

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You may notice below that we have switched to using HTML (HyperText Markup Language) format for listing files at FTP sites. We are doing that as a slow progression toward making TidBITS more compatible with the World-Wide Web (WWW). The basic format is easy to figure out - a listing, called a URL or Universal Resource Locator, can look like one of these two possibilities (the difference being that the first one points at a file, whereas the second points at a directory):

ftp://host-name/directory-path/file-name
ftp://host-name/directory-path/

If you use NCSA Mosaic heavily, you can easily copy that line, switch to Mosaic, from the File menu choose Open URL, and paste the URL into the dialog box to retrieve the file via Mosaic. Of course, it might be easier to use the information in Fetch or TurboGopher or just plain Unix FTP.

 

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